Can any establishment / factory owner be acting as "consultant/ freelancer" for other establishment / factory?

Dear folks, Can any establishment / factory owner be acting as "consultant/ freelancer" for other establishment / factory.
kindly share your lucid opinion and any kind of statutory issues behind it.

Dear Gobikannan,
First, let us know on whose behalf this query is raised - on behalf of the factory owner cum consultant or on behalf of any other factory management intending to hire his services?

Dear sir,
Nothing. it's utterly up to me and asked as general query and i wanted to know that. that's all.

Appreciating your frankness, let me express my personal views on the hypothetical situation, Gobikannan.
In the first place, whether any factory owner will have the time and willingness to work systematically as a consultant for others would be a valid question. He may tender some professional advice to others occasionally if consulted as a resource person but not as a professional consultant on regular basis for the people seeking his advice may eventually become his formidable competitors. Secondly, it is possible that other owners may feel a bit skeptical to discuss their problems freely with the person as they would have to divulge some trade secrets to him by way of complete apprisal.
Well, if a factory owner prefers to mantle the role of a freelance consultant to other factory owners, no legal bar if any on his acting so but there should be some takers too!